Unwanted "ans" in my output

Hi all,

I know a lot of people already asked this, but still i cannot have the correct output.

In my function,

function [area, cr] = circle(r);

area = pi * r^2

cr = pi * 2 * r

end

Still the first output (area) will be populated after I added semi-colon at end of first line.

Thanks for your help in advance.

[Ashfaque Ahmed]

Dear Sir, This is working but only one value is showing i.e. area.

[Ashfaque Ahmed]

>> y = circle(1)

y =

    3.1416

Answer 1

[madhan ravi]

[area,cr]=circle(2) % calling of function with two outputs , here r is 2
function [area, cr] = circle(r);
area = pi * r^2; %semicolon here
cr = pi * 2 * r; %semicolon here
end

[Xuande Zhang]

Thanks for your answer. Let me rephrase my question, I want MATLAB to populate "area" and "cr". However MATLAB gave me "area" "cr" and "ans".

How can I disable the "ans" output? Thank

[madhan ravi]

Did you try my answer?

[madhan ravi]

>>area =

     12.5664

cr =

     12.5664

>>

[madhan ravi]

this is my output in my command window

Answer 2

[Guillaume]

This is what you see when you write your code in matlab's editor

Can't you see the editor highlights that point out the issues with your code? If you hover over them, the editor even tells you how to fix them and offer to fix it for you. Why do you ignore it?

As the editor tells you, no semi-colon on the first line, but semi-colons on the 2nd and 3rd, so

function [area, cr] = circle(r)
   area = pi * r^2;
   cr = pi * 2 * r;
end

[Xuande Zhang]

Thanks for your answer. Let me rephrase my question, I want MATLAB to populate "area" and "cr". However MATLAB gave me "area" "cr" and "ans".

How can I disable the "ans" output? Thank

[Guillaume]

First, follow the instruction given above and do the fixes that the editor tells you to do. Your function code should be

function [area, cr] = circle(r)
  area = pi * r^2;
  cr = pi * 2 * r;
end

Once you've done that, when you call your function, you'll notice that you no longer get the area and cr output (!) but still get your unwanted ans

That particular problem is because you need to learn how to call functions. As documented ans gets created when you call a function without assigning its result to a variable. The proper way to call your function is:

[area, perimeter] = circle(somevalue)

and no more ans !

[Xuande Zhang]

Thanks for your help! It worked.